Patent GB-484495-A (GB)
Title: Liquid dispensing device
IPC: B67D7/22
Filed: 1936-11-05
Abstract: 484,495. Calculating-apparatus. BOWSER & CO., Inc., S. F., and CARROLL, W. M. Nov. 5, 1936, No. 30207. [Class 106 (i)] In liquid-dispensing apparatus the registering- apparatus is driven under the control of the liquid-measuring meter by power means independent thereof and adapted to operate continuously. For example, the power means may comprise the electric motor driving the pump supplying liquid to the dispensing-apparatus. The price per unit of liquid which may be adjusted, the amount dispensed at each operation and the price thereof are either indicated and /or recorded. Total price and quantity registers may also be provided and zeroizing of the item registers is preferably effected by the same power means when the usual hose nozzle is removed from its supporting hook. The liquid from a supply pipe 4, Fig. 15, is forced through the usual air release chamber 16, meter 49, pipe 20 and sight glass 22 to the dispensing hose 24, by a pump 6 driven by an electric motor 14 which through a belt 30 also drives a shaft 32 for actuating the registering mechanism, although a separate electric motor may be used for the latter purpose. The motor is energized immediately the hose nozzle 166 is removed from the hook 167 and the shaft 32, Fig. 2, drives through gearing 35, 36 the shell 38 of a clutch comprising also a cam 41 fixed to shaft 37 and a disc 39 carrying rollers 40 coacting with the cam 41. The disc 39 and shell 38 are freely mounted on shaft 37 and the shell 38 rotates idly until the actual dispensing begins, when the meter 49 rotates a shaft 44 which through gearing 43, 42 drives the disc 39 according to the amount dispensed. The rollers 40 are thereby moved into engagement with the cam 41 which is then driven with shaft 37 by the relatively fast rotating shell 38 but only at the speed of the disc 39. The gearing is such that shaft 37 makes ten rotations per gallon. Item gallons, indicating. Shaft 37, Fig. 10, drives through gearing 136, 137, shaft 138, worm-gearing 140 and a multiple disc clutch 147, a disc 148 fixed to a shaft 146 carrying at each end pointers 135 indicating on a dial, Fig. 15, fractional gallons, the gallons pointers 134 mounted on sleeves 155 being driven by a single transfer projection on the disc 148 which advances a gear wheel 149 fixed to a shaft 150, gears 151, 152 on which drive the sleeves 155 and pointers 134. Suitable reversing gear is introduced in the drive to the rear pointers 134, 135. Item and total gallons accumulator. Shaft 37, Fig. 8, also drives through a single toothed disc 115 a gear 122 which through a pawl 123, advances a ratchet 124 rigid with a gear 114 which drives a gear 113 rigid with the item printing wheel 112 for the tenths of a gallon order. Transfer to the units printing wheel 112 is effected by a gear 125 on a sleeve 126, Figs. 7, 8 free on a shaft 92, a single toothed disc 127 on which advances the units wheel 114. Transfer to the tens gear 114 is effected by a gear 128 on shaft 37 meshing with the units wheel 114 and operating the tens wheel 114 through a one-toothed wheel rigid therewith. The total gallons dispensed is printed by wheels 130 on a shaft 131 actuated from the item register in known manner. Price setting. The price per gallon is varied by three setting levers 79, Figs. 6, 7, corresponding to the orders, tenths of a cent, cents, and tens of cents. Each setting lever is rigid with a segment 86. The lowest denominational segment 86 meshes with a segment 87 rigid with a segment 90 which through pinions 93 on a shaft 92 sets its individual segment 78 correspondingly. The next setting lever 79 sets its segment 78 similarly through a segment 88 and pinions 95 on a shaft 96 while the highest order lever 79 sets its segment 78 which is fixed to shaft 63 through a segment 89 also rigid with the shaft. The toothed parts of the three segments 78 mesh with wheels 81 free on a shaft 59 to set type wheels 82 to print the price per gallon at the end of the dispensing operation. In Fig. 7 further setting levers 79 are shown which through similar sectors 78 set up, respectively, printing wheels 82<1>, 82, Fig. 4, for the name of the month and the day of the month, and wheel 112<1> carrying identification marks of the operator of the apparatus. Item and total price accumulator. Accumulator wheels 100, Fig. 5, are provided on shaft 63 for each of the denominations hundredths of cents, tenths of cents, cents, tens of cents and dollars. Also, since the price may be, for example, 0À163 dollars per gallon and one rotation of shaft 37 corresponds to one-tenth of a gallon, i.e. 1À63 cents, only the first three order accumulator wheels 100 are directly actuated from shaft 37. For this purpose three arms 66, 67, 68, on shaft 37 successively and respectively rock arms 70 free on shaft 63 through 90‹ the arms when released being returned against a stop plate 74 by springs. Each arm 70 carries a spring-pressed pawl 77 which during advance of the arm 70 first slides over the smooth periphery of a segment 78, and after passing therefrom advances a ratchet wheel 99, rigid with the accumulator wheel 100, an amount corresponding to the setting of the segment 78. Thus, at each rotation of shaft 37, the arm 66 causes its arm 70 to add 3 to the hundredths of cents wheel 100, the arm 67 next adds 6 to the tens of cents wheel 100, and later arm 68 adds 1 to the cents wheel. Transfer between the various order wheels 100 is effected by four toothed discs 102, Fig. 5, each rigid with a wheel 100, which at transfer advances a gear 104, Fig. 7, rigid with a sleeve 105, rotatable on shaft 92, a further.gear 106 on the sleeve meshing with the accumulator wheel 100 of the next higher order. Printing wheels 56, 57, 58, Fig. 4, for the dollars, ten of cents, and cents only of the item amount are set by gears 101 rigid therewith meshing with the corresponding accumulator gears 100. The total gallons dispensed is accumulated on printing wheels 107 mounted on a shaft 108, the lower order wheels being driven by the three lowest order wheels 100 by intermediate gears 110. Transfer is by Geneva mechanism (not shown), and known means are provided to disengage the total accumulator wheels from the item wheels 100 during zeroizing thereof. Serial number type setting. Serial number type wheels 218 on shaft 59 are advanced at each dispensing operation during zeroizing as described later. Printing. When the hose nozzle 166 is replaced on its hook 167 after the dispensing operation, the operator presses a button 220, Fig. 11. A stud 223 on the button rocks a lever 178 about a shaft 179 and the lever 178 rocks a lever 185 clockwise about shaft 37. A pawl 186 on lever 185, engaging one of two projections 187 on a disc 188, Figs. 2, 11, thereby rocks the disc 188 clockwise. The bevelled leading edge of the operative projection 187 rocks a locking dog 195 from a projection 194 on a disc 189 which is then rotated clockwise through 180‹ under the action of a clutch 191, 192 by the shaft 32, the circuit of the driving motor being closed during the printing operation by the rocking of lever 185, as hereinafter described. A gear 225, Fig. 13, rigid with the clutch cam 192, Fig. 2, is now rotated 180‹ into the position shown the teeth thereof driving a gear wheel 226 on shaft 63. A wheel 227 rigid with wheel 226 drives a gear 228 on the shaft 59, a gear 229 rigid with 228 drives a gear 230 on shaft 231 the gear 230 being rigid with a printing electro-type plate 233 and a cam 232, coacting with the item printing harmner arm 235 pivoted on a shaft 236 which carries rotatable thereon a platen roller 238 co-operating with the type plate 233. The record ticket is manually inserted from the left, Fig. 13, between flats on feed discs 240 on shaft 231, and the platen roller 238 which acts as a complementary feed roller. One printing impression is made by the spring biassed hammer platen 239 from all the item printing wheels on shaft 59 soon after the cam 232 begins to rotate, after which the feed discs 240 advance the record ticket to the left. Towards the end of this movement the electro-type plate 233 effects its printing on the record ticket. These operations are repeated as the cam 232 makes a second rotation to effect a second impression, the record ticket then being severed between the imprints, one record being given to the customer and the other retained. Preferably a ticket having a carbon ribbon overlying it is used but alternatively any suitable inking mechanism for the printing wheels may be used. Any suitable means may be provided to print the price and quantity totals. At the end of the printing operation the toothed portion of the wheel 225 passes from the gear 226 and simultaneously the second projection 187 on the disc 188 passes under the dog 195, Fig. 11, which resumes its position against the periphery of discs 188, 189 and engages the projection 194 on disc 189 to disengage the clutch 191, 192 to stop the gear 225 and to stop the driving motor. Zeroizing mechanism. Zeroizing of all the item accumulators and the indicating hands 134, 135 is effected by a single forward and then reverse rotation of the zeroizing shaft 75 initiated by the removal of the nozzle 166 from its supporting hook. The hose nozzle is normally locked against unauthorized removal and is unlocked by inserting a key 168, Fig. 11, which contacts with an arm 169 to rock a shaft 170 anticlockwise thereby removing a spring biassed locking finger 176 from the path of a projection 177 on a shaft 179. When the nozzle is removed from the hook 167, link mechanism through an arm 181 rocks the shaft 179 anticlockwise whereupon the arm 178 thereon rocks the lever 185 to permit, as above described in the printing operation, rotation of discs 188, 189, and clutch cam 192, Fig. 2, through 180‹. During this operation, the plain peripheral portion of gear 225, Fig. 13, is adjacent the gear 226 so that the printi